The body of the unidentified man was found after a westbound L train pulled into the station at First Ave. and E. 14th St. about 7:15 a.m., officials said.

At the Bedford L stop in Williamsburg, Brooklyn, one stop away, the PA system announced that trains were not running into Manhattan due to an “investigation” at First Avenue. Throngs of commuters poured out onto the street and struggled to find alternate transportation.